Energy storage battery compartment with fireproof self-protection function

Abstract

The utility model relates to the technical field of energy storage battery bins, in particular to an energy storage battery bin with a fireproof self-protection function, a telescopic partition plate is arranged between two adjacent battery packs in the battery bin, and the output end of an inert gas bottle is connected with a gas transmission header pipe penetrating through a placement box. The gas transmission header pipe is fixedly connected with gas outlet branch pipes extending to the lower portions of the energy storage cavities, one side of each energy storage cavity is connected with a temperature sensor and a smoke sensor, and the top of each energy storage cavity is fixedly connected with a one-way valve. According to the utility model, the telescopic partition plates are arranged between the adjacent battery packs, so that the battery packs can be separated in time when the temperature sensor and the smoke sensor detect abnormity, and the safety of the adjacent battery packs can be ensured no matter which battery pack is abnormal; the inert gas bottle is arranged in the placement box and is matched with the one-way valve at the top of the battery compartment, so that oxygen in the battery compartment can be discharged in time, and loss is reduced by isolating oxygen.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage battery compartment technical field, concretely is a kind of energy storage battery compartment with fireproof self-protection function. BACKGROUND

[0002] Energy storage battery compartment, usually also called energy storage battery cabin or energy storage container, is a device specially used for storing electric energy. Energy storage battery compartment is mainly composed of battery pack, battery rack and the like, and battery pack is the core part of energy storage battery compartment, which is composed of single battery cell through series and parallel connection and monitored and managed through battery management system. As an important part of new energy and renewable energy field, energy storage battery compartment has wide application prospect and development potential. Energy storage battery, especially lithium battery, has the risk of thermal runaway and even explosion under abnormal conditions such as overcharge, short circuit and high temperature. Once these risks are triggered, fire will spread rapidly, and toxic gases and high temperature will be generated during battery combustion, which poses a serious threat to personnel and equipment. Therefore, a scientific fire prevention mechanism needs to be set to avoid accidents. At present, most energy storage battery compartments are provided with fire extinguishing mechanism, but in the current situation, once fire occurs in energy storage battery compartment, the fire extinguishing effect of the fire extinguishing mechanism is poor, which can cause damage to adjacent battery pack or even fire. Therefore, it is necessary to develop an energy storage battery compartment with fireproof self-protection function, which has good fireproof effect and can avoid damage to adjacent battery pack. SUMMARY

[0003] In view of the above technical problems, the utility model provides an energy storage battery compartment with fireproof self-protection function, which has good fireproof effect and can avoid damage to adjacent battery pack, to solve the problem of poor fire extinguishing effect of existing energy storage battery compartment, which causes damage to adjacent battery pack.

[0004] To solve the above technical problems, the utility model provides a kind of energy storage battery compartment with fireproof self-protection function, including battery compartment, at least three battery groups are arranged in the battery compartment, the battery group includes support, battery cell, the support is fixedly connected in the battery compartment, a plurality of mounting plates are fixedly connected on the support at intervals, the battery cell is fixedly connected on the mounting plate, the mounting plate, support outside and battery compartment inside are all fixedly connected with one side flame-retardant heat insulation layer, expansion baffle is arranged between the two battery groups of adjacent in the battery compartment, the expansion baffle divides the battery compartment into several energy storage cavities, the outside of the battery compartment is fixedly connected with placing box, inert gas bottle is connected in the placing box, inert gas bottle output end is connected with gas main pipe that passes through the placing box, gas pump is connected to the input end of the gas main pipe, gas main pipe is fixedly connected with gas branch pipe that extends to the lower part of the energy storage cavity, temperature sensor and smoke sensor are connected on one side of each energy storage cavity, and one-way valve is fixedly connected on the top, the temperature sensor, smoke sensor and controller are connected in communication, and the gas pump is controlled by the controller.

[0005] Further, the battery compartment is provided with a fire extinguishing device.

[0006] Further, the fire extinguishing device includes fire extinguisher, spray pipe, the fire extinguisher is arranged in the upper part of the placing box, the output end of the fire extinguisher is connected with discharge main pipe, the input end of the discharge main pipe is connected with booster pump, discharge branch pipe is connected on the discharge main pipe, solenoid valve is connected on the discharge branch pipe, the spray pipe is fixedly connected on the top in the energy storage cavity, a plurality of spray heads are fixedly connected on the lower end of the spray pipe, and the discharge branch pipe is fixedly connected with the spray pipe by penetrating the battery compartment.

[0007] Further, annular grooves are formed in the battery compartment, one side of the expansion baffle is fixedly connected with the annular grooves, and the other three sides are slidingly connected with the annular grooves.

[0008] Further, the expansion baffle is composed of at least two hollow plates that are sleeved with each other, the hollow plates are fixedly connected with telescopic rods, the bottom of the telescopic rod is fixedly connected with the side edge of the hollow plate on one side, the output end is fixedly connected with the side edge of the hollow plate on the other side, and the telescopic rod is controlled by the controller.

[0009] Further, the flame-retardant heat insulation layer is fixedly connected on the outside of the expansion baffle.

[0010] Further, the flame-retardant heat insulation layer is made of aerogel material.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model discloses a battery compartment, support, mounting plate, electric core, telescopic partition board, placement box, inert gas bottle, gas delivery pump, gas delivery main pipe, gas outlet branch pipe, annular recess, spray pipe, spray head, fire extinguisher, booster pump, discharge main pipe, discharge branch pipe, electromagnetic valve, telescopic rod, temperature sensor, smoke sensor and one-way valve are arranged, and the utility model discloses a battery compartment is set up in the support, and the mounting plate is arranged on the battery compartment, and the electric core is arranged in the battery compartment, and the telescopic partition board is arranged between the adjacent battery compartment, and the inert gas bottle is arranged in the placement box, and the gas delivery pump is arranged on the inert gas bottle, and the gas delivery main pipe is arranged on the gas delivery pump, and the gas outlet branch pipe is arranged on the gas delivery main pipe, and the annular recess is arranged on the gas outlet branch pipe, and the spray pipe is arranged on the annular recess, and the spray head is arranged on the spray pipe, and the fire extinguisher is arranged on the spray head, and the booster pump is arranged on the fire extinguisher, and the discharge main pipe is arranged on the booster pump, and the discharge branch pipe is arranged on the discharge main pipe, and the electromagnetic valve is arranged on the discharge branch pipe, and the telescopic rod is arranged on the electromagnetic valve, and the temperature sensor is arranged on the telescopic rod, and the smoke sensor is arranged on the temperature sensor, and the one-way valve is arranged on the smoke sensor. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is structural schematic diagram of the utility model.

[0014] Figure 2 It is Figure 1 The top view of the utility model.

[0015] Figure 3 It is Figure 1 The right view of the utility model.

[0016] Figure 4 It is telescopic partition board structure schematic diagram of the utility model.

[0017] In the drawing: 1, battery compartment, 2, support, 3, mounting plate, 4, electric core, 5, telescopic partition board, 6, placement box, 7, inert gas bottle, 8, gas delivery pump, 9, gas delivery main pipe, 10, gas outlet branch pipe, 11, annular recess, 12, spray pipe, 13, spray head, 14, fire extinguisher, 15, booster pump, 16, discharge main pipe, 17, discharge branch pipe, 18, electromagnetic valve, 19, telescopic rod, 20, temperature sensor, 21, smoke sensor, 22, one-way valve. DETAILED DESCRIPTION

[0018] The utility model will be further explained below in conjunction with the drawings.

[0019] For example, Figures 1-4The energy storage battery compartment with fireproof self-protection function shown comprises a battery compartment 1, at least three battery groups are arranged in the battery compartment 1 at intervals, the battery group comprises a support 2 and a battery cell 4, the support 2 is fixedly connected in the battery compartment 1, a plurality of mounting plates 3 are fixedly connected on the support 2 at intervals, the battery cell 4 is fixedly connected on the mounting plate 3, a side fire-retardant heat insulation layer is fixedly connected on the outer side of the mounting plate 3 and the support 2 and the inner side of the battery compartment 1, a telescopic partition plate 5 is arranged between two adjacent battery groups in the battery compartment 1, the telescopic partition plate 5 can divide the battery compartment 1 into a plurality of energy storage cavities, a placing box 6 is fixedly connected on the outer side of the battery compartment 1, an inert gas bottle 7 is arranged in the lower part of the placing box 6, a valve is connected to the output end of the inert gas bottle 7, the valve is connected with a gas supply main pipe 9 penetrating through the placing box 6, the input end of the gas supply main pipe 9 is connected with a gas supply pump 8, a gas outlet branch pipe 10 extending to the lower part of the energy storage cavity is fixedly connected on the gas supply main pipe 9, a temperature sensor 20 and a smoke sensor 21 are connected on one side of each energy storage cavity, a one-way valve 22 is fixedly connected on the top of each energy storage cavity, the temperature sensor 20 and the smoke sensor 21 are in communication connection with a controller, and the gas supply pump 8 is controlled by the controller.

[0020] In order to deal with accidental fire, the battery compartment 1 is provided with a fire extinguishing device. In order to achieve better fire extinguishing effect, the fire extinguishing device comprises a fire extinguisher 14 and a spray pipe 12, the fire extinguisher 14 is arranged in the upper part of the placing box 6, a discharging main pipe 16 is connected to the output end of the fire extinguisher 14, the input end of the discharging main pipe 16 is connected with a booster pump 15, a discharging branch pipe 17 is connected on the discharging main pipe 16, an electromagnetic valve 18 is connected on the discharging branch pipe 17, the top of the energy storage cavity is fixedly connected with the spray pipe 12 through a connecting rod, a plurality of nozzles 13 are fixedly connected on the lower end of the spray pipe 12, and the discharging branch pipe 17 penetrates through the battery compartment 1 and is fixedly connected with the spray pipe 12. The fire extinguisher 14 and the booster pump 15 are controlled by the controller.

[0021] In order to maintain good separation effect, a ring-shaped groove 11 is arranged in the battery compartment 1, one side of the telescopic partition plate 5 is fixedly connected with the ring-shaped groove 11, and the other three sides are in sliding connection with the ring-shaped groove 11. The telescopic partition plate 5 is composed of at least two hollow plates which are sleeved with each other, a telescopic rod 19 is fixedly connected in the hollow plate, the bottom of the telescopic rod 19 is fixedly connected with the side edge of the hollow plate on one side, and the output end is fixedly connected with the side edge of the hollow plate on the other side. In the embodiment, the telescopic rod 19 is an electric telescopic rod, and the telescopic rod 19 is controlled by the controller.

[0022] In order to avoid damage to adjacent battery groups, a fire-retardant heat insulation layer is fixedly connected on the outer side of the telescopic partition plate 5.

[0023] In order to guarantee good fire-retardant effect, the fire-retardant heat insulation layer is made of aerogel material.

[0024] To cool the battery pack and reduce the probability of accidental fire, the bracket 2 and mounting plate 3 are interconnected hollow structures. A chiller and a cold water tank are installed on the outside of the battery compartment 1. One side of the bracket is connected to the output end of the chiller through a water inlet pipe, and the other side is connected to the cold water tank through a water return pipe. The output end of the cold water tank is connected to the input end of the chiller. This can reduce the temperature of the battery cells and reduce the probability of accidents.

[0025] The working process of this embodiment is as follows:

[0026] During use, the telescopic partition 5 is in a retracted state, which can make the temperature inside the battery compartment 1 relatively uniform and avoid local overheating, thus increasing the probability of accidents. The temperature sensor 20 and the smoke sensor 21 monitor the inside of the battery compartment 1 in real time. When an abnormal temperature or smoke is detected at any battery pack, the controller controls the telescopic rod 19 to extend, which in turn causes the telescopic partition 5 to extend, thus separating the battery packs. Then, the valve on the inert gas cylinder 7 is opened, and the gas pump 8 is started, allowing inert gas to enter the battery compartment 1. Oxygen in the battery compartment 1 then flows out from the one-way valve 22 at the top, thereby reducing the oxygen content in the battery compartment 1. The temperature sensor 20 continues to monitor. When it detects that the temperature in a certain energy storage chamber is rising rapidly, it controls the fire extinguisher 14 to operate and simultaneously opens the solenoid valve 18 on the corresponding energy storage chamber's discharge branch pipe 17, starting the booster pump 15. This allows the extinguishing agent to be evenly sprayed onto the battery packs from the nozzle 12 and the spray nozzle 13, achieving fire extinguishing through the dual means of isolating oxygen and spraying extinguishing agent.

Claims

1. An energy storage battery compartment with fireproof self-protection function, characterized in that: The application relates to a battery compartment (1) which is internally provided with at least three battery groups, wherein the battery groups comprise a support (2) fixedly connected to the battery compartment (1), a plurality of mounting plates (3) fixedly connected to the support (2), and a plurality of battery cells (4) fixedly connected to the mounting plates (3); the mounting plates (3) and the support (2) are fixedly connected with a side fire-retardant and heat-insulating layer on the outside; two adjacent battery groups in the battery compartment (1) are provided with a telescopic partition plate (5) which divides the battery compartment (1) into a plurality of energy storage cavities; the outside of the battery compartment (1) is fixedly connected with a placing box (6) which is internally connected with an inert gas bottle (7); the output end of the inert gas bottle (7) is connected with a gas conveying main pipe (9) which penetrates through the placing box (6); the input end of the gas conveying main pipe (9) is connected with a gas conveying pump (8); the gas conveying main pipe (9) is fixedly connected with a gas outlet branch pipe (10) which extends to the lower part of the energy storage cavities; one side of each energy storage cavity is connected with a temperature sensor (20) and a smoke sensor (21); the top of each energy storage cavity is fixedly connected with a one-way valve (22); the temperature sensor (20) and the smoke sensor (21) are in communication connection with a controller; and the gas conveying pump (8) is controlled by the controller.

2. The energy storage battery compartment with self-protection against fire according to claim 1, characterized in that: The battery compartment (1) is provided with a fire extinguishing device.

3. The energy storage battery compartment with self-protection against fire according to claim 2, characterized in that: The fire extinguishing device comprises a fire extinguisher (14) and a spray pipe (12); the fire extinguisher (14) is arranged on the upper part of the placing box (6); the output end of the fire extinguisher (14) is connected with a discharging main pipe (16); the input end of the discharging main pipe (16) is connected with a booster pump (15); the discharging main pipe (16) is connected with a discharging branch pipe (17); the discharging branch pipe (17) is connected with an electromagnetic valve (18); the top of each energy storage cavity is fixedly connected with the spray pipe (12); the lower end of the spray pipe (12) is fixedly connected with a plurality of nozzles (13); and the discharging branch pipe (17) penetrates through the battery compartment (1) and is fixedly connected with the spray pipe (12).

4. The energy storage battery compartment with self-protection against fire according to claim 1, characterized in that: An annular groove (11) is arranged in the battery compartment (1); one side of the telescopic partition plate (5) is fixedly connected with the annular groove (11); and the other three sides of the telescopic partition plate (5) are in sliding connection with the annular groove (11).

5. The energy storage battery compartment with self-protection against fire according to claim 1, wherein: The telescopic partition plate (5) is composed of at least two hollow plates which are sleeved with each other; the hollow plates are fixedly connected with telescopic rods (19); the bottom of the telescopic rod (19) is fixedly connected with the side edge of the hollow plate on one side; the output end of the telescopic rod (19) is fixedly connected with the side edge of the hollow plate on the other side; and the telescopic rod (19) is controlled by the controller.

6. The energy storage battery compartment with self-protection against fire according to claim 5, characterized in that: The fire-retardant and heat-insulating layer is fixedly connected with the outside of the telescopic partition plate (5).

7. The energy storage battery compartment with self-protection against fire according to claim 6, characterized in that: The fire-retardant and heat-insulating layer is made of aerogel material.

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